If you had the chance to ask an astronaut one question about space travel, what would it be?

Some may ask what it’s like to be weightless, while others may inquire about the bathroom facilities available on a shuttle or space station.

But what about grooming? Hey, an astronaut has to look good for a NASA briefing or publicity photo! Thankfully, Chris Hadfield is here to help.

Hadfield is the Canadian astronaut who made headlines by posting a series of photos taken from the International Space Station, which he’ll take command of in March, on Twitter. Now he’s back to teach us the art of cutting one’s fingernails while living in space. Click on the above video to find out more!

About

Light Years strives to tell the stories of science research, discovery, space and education. This is your go-to place on CNN.com for today’s stories, but also for a scientific perspective on the news and everyday wonders. Come indulge your curiosity in all things space and science related, brought to you by the entire CNN family.